Spear for shade-rollers.



VIM-741,670. PATENTED 00120, 1903; w. 11. JANES.

SPEAK FOR SHADE ROLLERS.

APPLIUATIOF FILED D110. 24, 1962.

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WITNESSES: I INVENT'QR THE noims PEIERS co. PHOTO-LITNQ. WASHINGTON, n. c.

UNITED STATES Patented October 20, 190 3.

WILLIAM D. JANES, OFSAGIN AW, MICHIGAN.

SPEAR FOR SHADE-ROLLERS.

SPECIFICATION forming part of Letters Patent .No. 741,670, dated October 20, 1903.

Application filed December 24, 1902. Serial No. 136,448. (No model- T0 at whom it may concern:

Be it known that I,;WILLIAM D. JANES, a citizen of the United States, residing at Saginaw, in the county of Saginaw and State of Michigan, have invented certain new and useful Improvements in Spears for Shade- Rollers; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

This is a construction for the supportingspindle, commonly termed the spear, of shade-rollers. Itis particularly adapted for use in such shade-roller constructions as require to be assembled by passing the spear up through the pawl-plate of the shade-roller cap. Such a construction is shown in my Patent No. 713,664, issued November 18, 1902. In assembling the working parts of shade-rollers having caps of this type it has heretofore been common to first bore a longitudinal hole intothe shade-roller to receive the spring. The inner end of the spring is usually held in place by a plug resting on the bottom of the hole and fastened in place by a transverse pin. Within the spring and extending into the plug is a central wooden spindle, to the outer end of which is secured the outer end of the shade-roller spring. Ordinarily a hole is drilled into the end of the spindle to receive the spear, the outer end of whichthus projects beyond the end of the roller. The shade-roller cap, comprising the pawl-plate and cover-plate,with the pawls between, as described in the patent above referred to, is dropped over the spear and rests uponthe end of the shade-roller. The fiatted end of the spear, which rests in the slot of the shade-roller bracket when the shade is in use, should project just far enough beyond the cover-plate to properly engage the bracket. This arrangement is successful in practice so long as the flatted end of the pawl projects exactly the proper distance beyond the cap and so long as the spear does not rub against the under side of the bearing in .the pawlplate. The relative positions of the cap and spear are determined by the depth of the hole and the combined length of the spear, spindle, and plug. If the hole in the roller is not deep enough or if the total length of the spear, spiiidle,'and plug is a little too great, then the spear will bind against the bearing in the pawl-plate,preventing the roller from working easily. On the other hand, if the hole in the roller is a little too deep or if the total length of the spear, spindle, and plug is ,a little too short then the ratchet will not project far enough into the cap and the pawls will drop at the end of the ratchet instead of been the common custom, and, moreover, to

insure free action of the shade-roller regardless of slight variations in the relative length of the hole in the roller as compared with the total length of the spear, spindle, and plu I have devised the means illustrated in the accompanying drawings, which will now be described.

Figure 1 is an enlarged view showing a spear with my improvements attached, the shade-roller cap being in section. Fig. 2 is a section through the shade-roller cap on the line y y of Fig. 1. Fig. 3 is a part sectional view of a spear with my improvement .attached. Fig. 4 is a top plan view of the same. Fig. 5 is a section of the cap on the line 2 z of Fig. 4. Fig. 6 is a side elevation of a spear with a modified form of collarattached, the collar being shown partly in section.

As has been described, the object of the collar is to provide a device that can be attached near the end of thespear after the 1 represents the ratchet, which is engaged by the pawls 2, mounted in the shade-roller cap 3, which is fully described in my patent above referred to.

4 is the flattcd end of the spear, and 5 is a collar which is slipped over the end of the spear after the spear has been thrust up through the shade-roller cap, as is clearly shown in Fig. 1. This collar 5 may be made of any suitable material, preferably being pressed from sheet metal, and it may be held in place by any suitable means, although I prefer in practice to secure it by indenting it into a depression formed in the spear. The form or extent of the indentation is immaterial to my invention; but I show the preferred form in Figs. 3, 4, and 5 and a modified form in Fig. 6. In Figs. 3, 4, and 5 the collar is formed like a cup, having in its bottom 5 a slot 5" to take the flatted end 4 of the spear. The opposite sides of the cup are indented, the indentations 5 being pressed into depressions 6, formed in the side of the spear. This form of collar presents a neat appearance and imparts a smooth finish to the end of the spear. In Fig. 6 the indentation extends like a ring clear around the collar, and a circumferential groove 7 is provided in the spear to receive it. In this case the collar is in the form of an eyelet slipped on the end of the spear, and the depressed ring 5 is formed in it while it is in place on the spear. I

I prefer in practice to provide the collar 5 with an outwardly-projecting flange 5 to bear against the outer face of the coverplate 8.

the pawl-plate and through the cover-plate;

and a collar fixed on the spear, said collar comprising a flanged cup formed of sheet metal, with a slot in the bottom of the cup to receive the fiatted end of the spear, and depressions in the side of the cup adapted to engage corresponding depressions in the side of the spear substantially as described and for the purpose set forth.

2. A collar for the spear of shade-rollers comprising a flanged cup formed of sheet metal; a slot in the bottom of said cup to receive the fiatted end of said spear and depressions in the side of said cup to engage corresponding depressions in the side of the spear, substantially as described and for the purposes set forth.

In testimony whereof I afiix my signature in presence of two Witnesses.

WILLIAM D. JANES.

l/Vitnesses:

P. M. HoLnswon'rn, A. EASTERLY. 

